package spring.boot.demo.aspect;

import java.util.Arrays;

import javax.servlet.http.HttpServletRequest;

import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

@Component
@Aspect
@Order(5)
public class WebLogAspect {
	
	private Logger logger = Logger.getLogger(getClass());
	
	ThreadLocal<Long> startTime = new ThreadLocal<>();
	
	@Pointcut("execution(public * spring.boot.demo.web..*.*(..))")
	public void webLog(){};
	
	@Before("webLog()")
	public void doBefore(JoinPoint joinPoint)throws Throwable{
		startTime.set(System.currentTimeMillis());
		
		// 接收到请求，记录请求内容
		ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
		HttpServletRequest request = attributes.getRequest();
		
		// 记录下请求内容
		logger.info("URL: "+ request.getRequestURL().toString());
		logger.info("HTTP_METHOD: " + request.getMethod());
        logger.info("IP: " + request.getRemoteAddr());
        logger.info("CLASS_METHOD: "+joinPoint.getSignature().getDeclaringTypeName()+"."+joinPoint.getSignature().getName());
        logger.info("ARGS: " +Arrays.toString(joinPoint.getArgs()));
	}
	
	@AfterReturning(returning="ret",pointcut="webLog()")
	public void doAfterReturning(Object ret) throws Throwable{
		// 处理完请求，返回内容
		logger.info("RESPONSE: "+ret);
		logger.info("SPEND TIME : " + (System.currentTimeMillis() - startTime.get()));
	}
}
